发明名称 |
CONDITIONING BY CEMENTATION OF A NUCLEAR WASTE COMPRISING MAGNESIUM IN METAL FORM |
摘要 |
The invention relates to a method of conditioning, by embedding in a cementitious matrix, a nuclear waste comprising magnesium metal and at least one material selected from graphite and steels, which method comprises the following steps: embedding the waste using a cementitious paste obtained by mixing a composition comprising a powder of a binder selected from hydraulic cements, vitrified blast-furnace slags and mixtures thereof, and an aqueous mixing solution; then - leaving the cementitious paste to harden in order to form the cementitious matrix; and is characterized in that the aqueous mixing solution comprises at least 1 mol/L of a strong base. The invention also relates to a composition suitable for being used in this conditioning method and also to a conditioning package obtained by said method. Applications: conditioning of waste from UNGG (for "Uranium Naturel - Graphite - Gaz carbonique [natural uranium - grapite - carbon dioxide]) or MAGNOX (for Magnesium Non OXidizing) nuclear reactors with a view to the storage thereof. |
申请公布号 |
WO2015193098(A1) |
申请公布日期 |
2015.12.23 |
申请号 |
WO2015EP62172 |
申请日期 |
2015.06.01 |
申请人 |
AREVA NC |
发明人 |
STEFAN, LAVINIA;CHARTIER, DAVID;AVRIL, DAMIEN;SANCHEZ-CANET, JENNIFER |
分类号 |
G21F9/30;C04B7/00;C04B18/04;C04B28/00;C04B28/02;G21D1/00;G21F9/34 |
主分类号 |
G21F9/30 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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